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A.U-DictionaryB.Merriam-WebsterC.DictionaryD.Oxford English Dictionary23.What makes Merriam-Webster less appealing?A.No offline service.B.No thesaurus modeC.Occasional advertisements.D.Many packages to download.We use a huge amount of single-use plastic each year -we buy one million plastic bottles each minute around the world.Plastic waste,a material that can take centuries or more to disappear,is causing irreparable damage to the planet.However,plastic waste generated in many countries typically ends up in open,.uncontrolled landfills(垃圾填埋池)-most of whicheventually enters the ocean either transported by wind or through waterways.Now,Nzambi Matee,a 29-year-old woman from Nairobi,Kenya,is dealing with this global crisis by recycling bags,containers,and other waste products into bricks used for construction projects.Before launching her company,Gjenge Makers,Matee worked as an oil-industry engineer.After encountering plastic waste along Nairobi's streets,she decided to quit her joband created a small lab,testing sand and plastic combinations.Matee eventually received a scholarship to study in the materialslab at the University of Colorado Boulder,where she ultimately developed a prototype (for the machine that nowproduces the new bricks.Made from a combination of plastic and sand,the bricks have a melting point higher than 350C and are more durable thanconcrete bricks.Matee and her team source much of the raw product from factories and recyclers,and sometimes it's free,whichallows the company to reduce the price point on the product and make it more affordable for schools and homeowners."There is that waste recyclers cannot process anymore.That is what we get,"Matee said.Her factory produces 1,500 brickseach day,made from a mix of different kinds of plastic.These are high-density polyethylene,used in milk and shampoo bottles;low-density polyethylene,often used for sandwich bags;and polypropylene,often used for ropes.But she does not work withpolyethylene terephthalate or PET,commonly used for plastic bottles,which can be made into the same form easily again andagainThe plastic waste is mixed with sand,heated and then pressed into bricks,which are sold at varying prices,depending onthickness and colour.24.What does paragraph 1 mainly focus on?A.Our irresponsible plastic waste treatment.B.The damage caused by plastic production.C.Our dependence on single-use plastic.D.The examples of single-use plastic.25.What caused Matee to make the new bricks?A.Her job as an oil-industry engineer.B.Her determination to win a scholarship.C.Her awareness of Nairobi's plastic waste problem.D.Her lab project at the University of Colorado Boulder.26.What are Matee's bricks like compared to traditional bricks?A.They take less time to make.B.They are cheaper and stronger.